AMD Instinct MI325X vs NVIDIA Switch 2 GPU Comparison

Head-to-Head Benchmarks

The recorded data contains no benchmark scores for either the AMD Instinct MI325X or the NVIDIA Switch 2 GPU. Both entries show an average benchmark score of 0, and the head-to-head benchmark table is empty. This absence of measured performance data means direct numerical comparisons between these two accelerators cannot be drawn from the database. The percentile ranking for both products sits at 50, which places them at the median of all GPUs tracked, but this percentile is derived from identical zero scores, so it offers no differentiation.

What the database does provide are raw specifications that indicate the intended performance envelope of each chip. The AMD Instinct MI325X delivers 81.72 TFLOPS of FP32 compute and an identical 81.72 TFLOPS of FP16 compute on a 1:1 ratio. The NVIDIA Switch 2 GPU produces 4.301 TFLOPS of FP32 and 8.602 TFLOPS of FP16 on a 2:1 ratio. The FP16 figure for the Switch 2 GPU is exactly double its FP32 output, which indicates the use of packed math instructions. The MI325X maintains a 1:1 ratio, meaning its FP16 throughput equals its FP32 throughput without any packing advantage. In raw FLOP terms, the MI325X leads by a factor of approximately 19 in FP32 and approximately 9.5 in FP16.

Memory bandwidth separates the two even more sharply. The MI325X reaches 6.14 TB/s through an 8192-bit bus using HBM3e memory. The Switch 2 GPU achieves 102.4 GB/s over a 128-bit bus with LPDDR5X memory. The bandwidth ratio is roughly 60 to 1 in favor of the MI325X. Texture rate follows a similar pattern: the MI325X processes 2,553.6 GTexel/s, while the Switch 2 GPU manages 67.20 GTexel/s. The pixel rate tells a different story, as the MI325X reports 0 MPixel/s because it has no ROPs, while the Switch 2 GPU outputs 22.40 GPixel/s from its 16 ROPs.

Where Each One Wins

The AMD Instinct MI325X wins decisively in every compute-heavy category recorded in the database. Its FP32 throughput of 81.72 TFLOPS dwarfs the 4.301 TFLOPS of the Switch 2 GPU. Its FP16 compute of 81.72 TFLOPS exceeds the Switch 2 GPU's 8.602 TFLOPS by nearly tenfold. Texture rate favors the MI325X at 2,553.6 GTexel/s versus 67.20 GTexel/s. Memory bandwidth is overwhelmingly in favor of the MI325X at 6.14 TB/s compared to 102.4 GB/s. Memory capacity also favors the MI325X at 256 GB versus 12 GB. The MI325X uses a 5 nm process at TSMC, while the Switch 2 GPU uses an 8 nm process at Samsung. The MI325X contains 153,000 million transistors on a 1017 mm² die, giving a transistor density of 150.4 million transistors per square millimeter. The Switch 2 GPU's transistor count is unknown, but its die size is 200 mm².

The NVIDIA Switch 2 GPU wins in categories related to rasterization and API support. It has 16 ROPs and produces 22.40 GPixel/s, while the MI325X has zero ROPs and produces zero pixel throughput. The Switch 2 GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI325X reports N/A for all three APIs. The Switch 2 GPU includes 12 RT cores and 48 tensor cores, while the MI325X lists null values for both. The Switch 2 GPU draws 40 W of power, while the MI325X draws 1000 W. The Switch 2 GPU has a physical form factor with dimensions of 272 mm by 116 mm by 14 mm, while the MI325X is an OAM module with no listed dimensions. The Switch 2 GPU has a production status of Active, while the MI325X has none listed.

Architecture Differences

The MI325X uses the Aqua Vanjaram chip built on CDNA 3.0 architecture, a design optimized for data center compute workloads. It packs 19,456 shading units and 1,216 TMUs, but it has no ROPs, no RT cores, and no tensor cores listed. The absence of ROPs confirms this is not a rasterization-oriented part. The lack of display outputs further confirms its server role. The MI325X connects through PCIe 5.0 x16 and requires a 1400 W suggested power supply, though it has no power connectors listed because it uses an OAM module interface.

The Switch 2 GPU uses the GA10B chip built on Ampere architecture, a design intended for console gaming. It contains 1,536 shading units, 48 TMUs, 16 ROPs, 12 RT cores, and 48 tensor cores. The presence of RT and tensor cores indicates support for ray tracing and AI-accelerated features. The Switch 2 GPU supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it compatible with modern gaming APIs. Its memory subsystem uses 12 GB of LPDDR5X across a 128-bit bus, yielding 102.4 GB/s of bandwidth. The clock speeds differ substantially: the MI325X runs at 1000 MHz base and 2100 MHz boost, while the Switch 2 GPU runs at 561 MHz base and 1400 MHz boost.

The process technology separates the two clearly. The MI325X uses TSMC's 5 nm process with a die size of 1017 mm². The Switch 2 GPU uses Samsung's 8 nm process with a die size of 200 mm². The transistor density of the MI325X is 150.4 million transistors per square millimeter. The Switch 2 GPU's transistor density is not recorded. The MI325X release date is 2024-10-09, while the Switch 2 GPU release date is 2025-06-04. The MI325X has a predecessor listed as Radeon Instinct, while the Switch 2 GPU has no predecessor. Neither product has a successor listed.

The Verdict

The data points to two entirely different product categories. The AMD Instinct MI325X is a server accelerator with massive compute throughput, 256 GB of HBM3e memory, and 6.14 TB/s of bandwidth. It has no display outputs, no ROPs, and no consumer API support. Its 1000 W power draw and OAM module form factor place it in data center racks, not consumer devices. The NVIDIA Switch 2 GPU is a console-class chip with 12 GB of LPDDR5X memory, 102.4 GB/s of bandwidth, and full rasterization hardware including 16 ROPs and 12 RT cores. Its 40 W power draw and compact dimensions of 272 mm by 116 mm by 14 mm fit a handheld or home console.

Benchmark results cannot differentiate the two because no scores exist in the database. The percentile ranking of 50 for both is meaningless without actual measurements. What the specifications show is that the MI325X outperforms the Switch 2 GPU by roughly 19 times in FP32 compute, roughly 9.5 times in FP16 compute, and roughly 60 times in memory bandwidth. The Switch 2 GPU outperforms the MI325X in pixel throughput by 22.40 GPixel/s versus 0, and it supports modern graphics APIs that the MI325X lacks entirely.

A user requiring massive parallel compute for training or inference workloads would select the MI325X based on its 81.72 TFLOPS of FP32 and its 256 GB memory capacity. A user requiring rasterization, ray tracing, or API compatibility would select the Switch 2 GPU based on its 16 ROPs, 12 RT cores, and DirectX 12 Ultimate support. The launch MSRP for the Switch 2 GPU is 449 USD, stated once here as recorded. The MI325X has no launch MSRP in the database.

FAQ

Q: Which GPU has higher FP32 compute?

A: The AMD Instinct MI325X delivers 81.72 TFLOPS of FP32, while the NVIDIA Switch 2 GPU delivers 4.301 TFLOPS. The MI325X leads by roughly 19 times.

Q: Which GPU supports ray tracing?

A: The NVIDIA Switch 2 GPU includes 12 RT cores and 48 tensor cores. The AMD Instinct MI325X has null values for both RT cores and tensor cores, indicating no ray tracing hardware.

Q: How much memory does each GPU have?

A: The AMD Instinct MI325X has 256 GB of HBM3e memory on an 8192-bit bus. The NVIDIA Switch 2 GPU has 12 GB of LPDDR5X memory on a 128-bit bus.

Q: What is the power draw difference?

A: The AMD Instinct MI325X has a TDP of 1000 W with a suggested power supply of 1400 W. The NVIDIA Switch 2 GPU has a TDP of 40 W.

Q: Which GPU supports DirectX 12 Ultimate?

A: The NVIDIA Switch 2 GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD Instinct MI325X reports N/A for all three APIs.

Q: What are the physical dimensions of each GPU?

A: The NVIDIA Switch 2 GPU measures 272 mm by 116 mm by 14 mm. The AMD Instinct MI325X is an OAM module with no dimensions listed in the database.

Specification Differences

| Specification | AMD Instinct MI325X | NVIDIA Switch 2 GPU |

|---|---|---|

| Manufacturer | AMD | NVIDIA |

| Chip | Aqua Vanjaram | GA10B |

| Architecture | CDNA 3.0 | Ampere |

| Generation | Instinct (MIx) | Console GPU (Nintendo) |

| Process Node | 5 nm | 8 nm |

| Foundry | TSMC | Samsung |

| Transistors | 153,000 million | unknown |

| Die Size | 1017 mm² | 200 mm² |

| Transistor Density | 150.4M / mm² | null |

| Base Clock | 1000 MHz | 561 MHz |

| Boost Clock | 2100 MHz | 1400 MHz |

| Memory Clock | 1500 MHz 6 Gbps effective | 800 MHz 6.4 Gbps effective |

| Memory Size | 256 GB | 12 GB |

| Memory Type | HBM3e | LPDDR5X |

| Memory Bus Width | 8192 bit | 128 bit |

| Memory Bandwidth | 6.14 TB/s | 102.4 GB/s |

| Shading Units | 19456 | 1536 |

| TMUs | 1216 | 48 |

| ROPs | 0 | 16 |

| RT Cores | null | 12 |

| Tensor Cores | null | 48 |

| Pixel Rate | 0 MPixel/s | 22.40 GPixel/s |

| Texture Rate | 2,553.6 GTexel/s | 67.20 GTexel/s |

| FP32 | 81.72 TFLOPS | 4.301 TFLOPS |

| FP16 | 81.72 TFLOPS (1:1) | 8.602 TFLOPS (2:1) |

| TDP | 1000 W | 40 W |

| Slot Width | OAM Module | null |

| Power Connectors | None | null |

| Suggested PSU | 1400 W | null |

| Bus Interface | PCIe 5.0 x16 | null |

| Display Outputs | No outputs | No outputs |

| DirectX | N/A | 12 Ultimate (12_2) |

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | null | 272 mm 10.7 inches, 116 mm 4.6 inches, 14 mm 0.6 inches |

| Production Status | null | Active |

| Release Date | 2024-10-09 | 2025-06-04 |

| Predecessor | Radeon Instinct | null |

| Launch MSRP | null | 449 USD |